# coverage: ignore
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.

from openfermion.resource_estimates import HAVE_DEPS_FOR_RESOURCE_ESTIMATES

if HAVE_DEPS_FOR_RESOURCE_ESTIMATES:
    from .hamiltonian import (
        build_hamiltonian,
        build_momentum_transfer_mapping,
        cholesky_from_df_ints,
        HamiltonianProperties,
    )
